Feels like the red/yellow hover-over colors on the main menu doesn't clearly tell you which is the hover-over and which isn't, especially when one is already selected from the beginning, and pressing both left and right can select both left and right. I kept starting a level instead of getting to the manual at the start. Anyway, that minor detail disconsidered, this really was a batter of oldskool fun! Simple idea, working mechanics and AI smart enough to give you a challenge but not smart enough to really be a problem. Level variation adds to the challenge too, though it'd be cool with a local multiplayer option as well, maybe a tournament mode where you battle through all four levels, or a quicker mode with level selection. Probably not the most replayable mode considering how limited your attack strategies would be, but it'd be nice to have! Overall, good fun.
-cd-