Today, I came up with the idea for a game. Specifically, a heavily-Gauntlet-inspired (read: blatant ripoff of :P) game, taking many of the ideas within it and adding my own spin.
Mainly, I came up with the idea of six elements and five classes:
Fire (specials buff attack), Water (specials buff allies' attack), Earth (specials buff defense), Wind (specials buff allies' defense), Light (heals), and Darkness (specials kill more efficiently) for the elements, colored much as you'd expect (Red, Blue, Green, White, Yellow, and Black).
For the classes, I came up with Berserker (raw attack), Knight (raw defense), Rogue (raw speed, with faster melee attacks), Ranger (raw speed, with faster range attacks), and Archmage (items, plus small bonus to specials).
The game would have an attack button, and a special button, with a "special ability gauge". The special button when uncharged gives more powerful attacks, and can create combos of various types using other keys. The more charged the bar and/or the more complex the combo, the stronger the end attack is.
The special button at full power can unleash the ultimate attack, which kills anything unfriendly around the user and sends an attack forward, at the cost of all the gauge. At two thirds and above, there's an area attack, killing everything around the user and dealing damage to things further away, at the cost of two-thirds of the bar.
Items could be used/activated with another button, and presumably two buttons to toggle through items. With another button to bring up a menu, and I was thinking one last button to strafe, since this game is a hack-n-slash which means you can move around.
At level 10, characters' primary attribute are unlocked. At 20, they gain a spirit, offering a second attack. At 30, their ability gets upgraded. At 50, their spirit gets upgraded. At 60, they gain a second attribute. At 75, their spirit now can go through obstacles. At 99, everything gets increased.
The game comes with a choice of 30 combinations of both genders. (So, 60 characters total.) And as there are 5 classes, there are 5 people in the party (albeit only one controlled by the player, with the others being NPCs). And as such, it offers 30 areas, each with five normal levels.
But that's as far as I took the concept, other than imagining what the Archmages look like. (Short answer--insane. Fire is Laughing Mad, Darkness has a wicked grin, Light has a grin with a fang showing, you get the idea. :P)