Hardest Super Mario Galaxy Levels / Bosses

I lost 80 lives! I played this one level for two three hour periods! I rage-Quit a year ago and never came back
I don't have SMG2 but I think this does deserve to be #1 on the list. It is sooo hard you may not make a single mistake, it's sooo difficult.
This level makes me want to kill someone. It is definitely the hardest Mario level EV-ER.
1 life with NO checkpoints. Having fun yet?

Ah yes, the famed sinking lava spire run. I have died so many times here, and this is the perfect run of smg1. I found this harder than the perfect run of smg2, and that's because of how insane the progression is. After dying for a while, you start rushing thorugh the volcano planet, and make more mistakes. When you finally get to the pull star bit, you slowly lose patience and may lose timing. Then the planet after that is the worst bit. All those lava cinders everywhere and the location of the star chips and the launch star is way too difficult. It takes extreme planning and precision to do such a gauntlet. Then the buildup to the spire is really stressful. By the point you reach the sideways sinking platforms the wii remote is already suffering from your sweat. The lava spire itself is the hardest part of all of it. You want to run quickly, but the boulders, lava cinders, distracting star bits and one ups and the difficult long jumps are a recipe for difficulty. Absolutely ...more
This was the prototype for the perfect run need I say more?... Lavaspire is a decently hard level for the first in the Melty Molten Galaxy. But making it so you can't get hit is just cruel! I can get through the first two sections easy peasy. the third is decently difficult but the fourth and fifth are just a lemon cake in the face! PLUS! NO checkpoints! I hate Lava Spire Daredevil Run
Probably the hardest star in the game, together with Bouldergeist Daredevil Run and Dreadnought Purple Coin Comet. I'm always failing on the last part; gotta start all over again. Thanks, game!
Almost impossible. I feel this slighty harder that the perfect run, but is still not harder though. this is indeed the star where many players stopped playing. I mean, seriously. you have to do the star that is easy to get hit on, without getting hit. and the worst part is, without checkpoints. YES, WiTHOUT CHECKPOINTS! This took me like 4-6 hours the first time with Mario. and it took longer (6-7 hours) with luigi.
Unlike most people time is not an issue for me. I can easily get to Fiery Dino Piranha with a minute left but the problem is, I just can't beat him. He's too difficult. I think that the thing that most people have with Fiery Dino Piranha is that either they run out of time on his final stage or die. This level is the reason that I haven't played this game in forever.
This is the ONLY level in the galaxy games that I had to rage quit. Every time I play, I have 3 and a half minutes left when I get to bouldergeist. Yet somehow, my time is always drained by the time I beat him, leaving me about 30 seconds each time to get to the last boss and get the star. All I ever needed was to beat bouldergeist faster, but it just doesn't happen.
The time limit is the problem. I can beat Dino Piranha and King Kaliente in a minute. Major Burrow is always hard for me, and Bouldergeist is time consuming. Fiery Dino Piranha, you just need to be calm which can get hard with everything going on. Overall, a fun and challenging mission. Favorite level!
I HATE this level. I still haven't finished it and I have spent 24 lives on it!

This is harder than some higher up levels like melty molten galaxy sinking spire.

Why is this one so low on the list? I found it very difficult to complete! Actually, it took me 20 tries to complete it without playing Daredevil mode. To my own surprise, I then cleared the daredevil run with my second try, dying the first time for mysterious reasons (I didn't know why I died). But it was still very hard.
This is only hard if you are playing as Luigi.
It even has checkpoints.
I don't find this hard!
And how is this hard

I never had an issue with kamella. She was always a nice boss with a cool aesthetic and concept. That was until this. I didn't even realize that the green shells can actually kill you if you don't spin quickly enough until now. Kamella also teleports a lot better during this fight compared to the other two variants. She'll teleport behind you and you'll get touched and die, or she'll teleport when you have the perfect chance to get her. The real difficulty comes from the final section when she moves up to her own platform. Yeah I don't need to describe it.
its just pure anxiety. if I have advice for you, just kill the kameks quickly enough before getting assaulted. Definitely top 10 hardest missions in this game. But definitely not the hardest too.

This should be at the top of the list. You have to be perfect to finish this. Even without the ridiculous time limit this would be hard.
Can be quite challenging, but there are way more coins on the level than you need, so try to leave some spaces open for the way back.
ARGH! You have to get 100 purple coins, while avoiding that OHKO purple-green lava, the disapearing and turning plataforms, and the level is TIMED! But that's not enough. On SMG2, the level have CLONES too!
Didn't realize at first that there are more then 100 coins and so spent waaay too much time on it.
This one really needs to be higher on the list! This star is the only one I've legitimately gotten angry over. A star where you can't get hit, can't spin more than twice after getting the cloud mushroom, and you can't really use checkpoints? Bull.
This star can go die
Damn I hate this level
Not hard at all.
Took ages to find the perfect strategy.
I vote for this one. Though The Perfect Run is obviously the hardest, I don't consider it a worthy option to vote for because it is purposefully the hardest. I had so many attempts at this before completing it anyways...
This deserves to be higher than Luigi's Purple Coins. Here, you're still collecting Purple Coins, But now, you're also given a Time Limit and are being chased by Cosmic Clones.


There's no way you've done this on your very first try. After a while it becomes pretty easy, but it took me 5-6 tries to make a good strategy. The real issue is the timer. Other than that, it is somewhat entertaining and used the purple coins well. The 2nd hardest purple coin mission after dreadnought's.
This isn't hard if you know this trick: whatever happens, try to keep moving, and fast where possible. Don't care about routes you need to take, you'll always make a mess somewhere. I usually get between 5 and 10 seconds every time I play it.
Duh, I beat this level with 16 seconds to spare. The trick is not to look at how much time you have left or how many purple coins you have left.
I always get this star with 1-5 seconds left!
Hilariously easy. But it's so damn time consuming. You missed that coin on top of the mountain? Climb it again, sonny boy. It takes me 15-20 minutes to complete. And that's average time!
Very hard level, purple coins in insane places, and if you die, (Which probably will happen), you have to start the WHOLE level over again.
Nowadays, this is on the easier side, but on my first playthrough, it was extremely difficult. It also has some of the best level design in the entire series. The three concepts mashed into one create the best one-star galaxy in the entire game. I appreciate the challenge, and the checkpoints were really helpful.
If you don't think this is hard enough, try playing without spinning or long jumping/side-flipping/triple jumping. Just use the nunchuk and the normal jump. It is really difficult. Good luck!
I had so much trouble with this. It took me 20 times to beat this galaxy
This has given me the most trouble when I was 8, I'm 13 now and it doesn't give me trouble but it should at least be on the list

Bouldergeist is a super hard boss, especially in the daredevil run.
The daredevil run was 10 times harder!

Argh! I touched him by mistake once and died when I was almost there!
Who thought nature could be so fierce?
Very hard boss. Useually I beat bosses on my first try, and this made me beat it on my foruth