Top 10 Most Amazingly Overpowered Gameplay Mechanics in Video Games
PLEASE NOTE: This list does not include things such as weapons and glitchesIn other words, Kirby can fly right over quite-nearly all of the enemies and levels of his games
As if this game's combat isn't already completely too easy in normal playthroughs of it,
New Game Plus allows you to have completely over-leveled characters 100% of the time
Basically, this mechanic is a "Super Block" that is more difficult than normal blocking; if the Street Fighter franchise was more realistic and balanced than it actually is, then this mechanic probably would simply reduce the amount of chip damage that blocking attacks causes, but since the Street Fighter franchise is as utterly cartoonish and nonsensical as it is, this mechanic causes EVERY attack that it gets used on to deal EXACTLY zero points of damage (most-notably projectile attacks, which it causes to become almost-completely useless). This mechanic thankfully was (mostly) scrapped in Street Fighter 4 and Street Fighter 5 in order to prevent Ryu's infamous Hadoken spamming and the like from becoming completely obsolete, but human error is one of THE only things that prevent it from making Third Strike's characters completely invincible
Healing: Can give its users nearly infinite amounts of health
Impact: Can very-easily be used as a stun-locker (not only on enemies, but also on BOSSES)
Destruction: Basically is an elemental bow that has unlimited arrows
Conjuration: Summons "helper" characters (which generally are extremely OP in modern Fallout/ES games)
Mind Control: Can make enemies unable to attack you
If you haven't played or seen Super Castlevania IV and think that its combat is going to require the type of strategic prowess that the combat of Castlevania 1 and Castlevania III (Dracula's Curse) requires, then you definitely should think again. This game's version of Simon's whip makes this game's sub-weapons almost completely pointless due to the fact that it can be swung up, forward, down, and diagonally. It deals almost comically large amounts of damage to both enemies and bosses, and even passes straight through walls and the like.
While this mechanic generally is completely useless during the early parts of EarthBound, it becomes EXTREMELY broken during the late parts of EarthBound; basically, this mechanic causes attacks that would instantly kill your party members in normal role-playing games to barely do anything to your party members as long as you can heal them or win the fights that "mortal damage" gets dealt to them during quickly enough