It was definitely amusing! What would make it hilariously fitting is if the enemies upgraded with you every time you collect something; if the patrolling tanks also drove faster, that'd be downright comedy (and probably super-challenging).
On a more practical note, I think a Metroid-like automap per level, accessible via Tab or something, would be helpful. But I'd really love for the trees to be destructible after a shot or two, even more so.