How does your submission match the theme?
Jumping is instrumental to any platformer, but an overlooked trait is the permanence of those platforms. In Boom Boots, every Jump results in the destruction of the platform from which you jumped. In most platformers, the impermanence of the platforms would unequivocally ruin the game; to avoid this, the goal of Boom Boots is not to go up, but down--instead, the player is incentivized to go up by the Items and Extra Money that spawn up there. In this way, the mechanic of Jumping serves not only to aid in basic platforming but also to damage the ground below you, adding an element of risk behind every jump--if you fail a jump, you may be unable to get some bonuses. At the same time, ground destruction has it's uses, specifically against some enemies. Basic Enemies can be trapped into tighter spaces, making jumping on them easier. One boss enemy (affectionaly named "Pinkie") requires you dig his grave by carving a tunnel that can fit him by repeatedly jumping (but be careful not to dig your own grave).
In this way, Jumping is multi-purpose: It serves to platform. At the same time, continued use makes platforming harder. It is also used to aid in combat.

Third-party resources
GameMaker: Studio 1.4
Font: Press Start (http://www.dafont.com/codeman38.d695)
Kevin MacLeod - 8bit Dungeon Level
Kevin MacLeod - 8bit Dungeon Boss
Kevin MacLeod - Pixelland
SFXR

Contributors
Paxx - Programmer, Artist
What's With Games - Lead Designer, Artist
ShinyZigzagoon - Touch-Up Artist