very good
i like it a lot the enemies were well balenced but it was a slight bit easy i sorta got bored at stage 14 and decided to see if i'd live if i got hit full on by those triple cannons (i didnt). but i t was fun and i liked the way the enemies got smaller as you progressed. i also think upgrades and permanent powerups would ruin the game i just dont think it would suit it you can hardly say you need a better gun to beat the game