Something is rotten on the asteroid of Anciena.
This is by far one of the best platformers on the SNES, with great bosses, and humor, and a varied amount of weaponry. It works like all other platformers by you going from left to right, and kills robots and bugs on the way. The real difference is the weapons and gadgets, so you can transform into a helicopter to get to hard-to-reach places.
The graphics are great, especially the intro, which is hilarious. The animation is amazing, for an example when you die, and turn to dust, or when you use on of the gadgets. On the sound side, the game leaves something to be desired, but this quite good, the only real problem is the soundtrack.
So, all-in-all, this is a great game and definitely worth picking up if you can find it.