Neat
It wasn't *that* difficult, but it did take several tries to finally make it all the way through and get the hang of things. Power-ups weren't quite common enough. It was a real bitch to slip up once, die, then never find another power-up for the rest of the game. And when you finally do get the best weapon, it's so big and so bright that you can't see what the hell you're doing. It's also impossible to miss the little white things that turn into big white things when you're packing that baby. Lastly, more powerful weapons weren't more powerful, just bigger. It would've been cool to really tear stuff up--make those rare power-ups really, really worth their rarity.
But I'm just nit picking because nits are the only thing to pick at. It was a great game. Very classic, very stylish. The music wasn't my thing.