Fast, fluid and tight goodness. The quick respawns and uninterrupted kickass music make the many attempts needed to get through the harder levels in a frictionless, and when you see all your tries at once at the end it's so cool. There's also a lot of stuff to find in the game, from the hard versions of each level, which are fun twists on what you've played before, to the unlockable characters and warp zones which have lives, adding some stakes for a change of pace. Extremely kickass game! <3