LOTS of fun! Once you've adjusted to the game-play and controls you can overcome the obstacles (even the "sliding ladders" that at first seem impossible). I've just finished the "Novice" level and mapped it out...once the "shadow is dead" on Novice, you're sent back to the beginning at Intermediate...I don't know if there are map differences at the higher level. Advice: read the instructions, save often, shoot diagonally, and try to keep at least one platform available in the corner (preferably under an barrier).

A nice mix of jump'n'run, shoot-em-up and map-it-out. Whilst not amongst the greatest of 8-bit games, it's a decent challenge and offers a fair bit of variety into the bargain.