Super House of Dead Ninjas is fun, fast-paced, and incredibly enjoyable.
The game is a rogue-like plat former with most of the action taking place vertically, with the player descending a large tower. There's a short timer that encourages the player to move faster through the level. Killing enough enemies with melee attacks, in short amount of time, will send the player into Rage Mode, giving the ability to kill all enemies with one hit.
Defeating a mini-boss will set up a checkpoint for the player to start from in subsequent games.
I enjoy the retro graphics, and fast gameplay most. The enemies crack me up, my favorite being the monkeys. Another fun feature is that the game will randomly create a special baddie named after someone in your friends list.
The game has a bit of a learning curve and it takes some time to figure out how to take on the enemies, traps, and mini-bosses. For example, the Butt-Face Horse Pigs take a bunch of hits to kill, there are numerous traps that will catch you off guard, etc.
Continuous play rewards you with buffs like cosmetic colors, extra lives, ammo, weapons, and buffs. This helps soften the learning curve.
I highly recommend this game :)