Modular Combat is a role-playing shooter based in the Half-Life universe. There are over 50 modules that can be upgraded at any level, in any combination. Modules give combatants amazing abilities such as flying, teleporting, spawning minions, and shooting flechettes or energy balls.
Jetpack Jesus - need we say more?
Jetpack received an overhaul in the v1.72 update - making it far easier to hover and move while using it.