Beat the game. I'm honestly not a big fan of it. The bosses have FAR too much health, it's more about cheesing it than actual skill. If you know how to beat each boss it's not THAT tough aside from the final boss, and even HE can be cheesed relatively easily.
The game is also FAR too long.
I always feel like people consider it tough cuz of all the shit all over the screen but once the grenade is upgraded it becomes a beast and really is the workhorse of your arsenal.
Here's a video of me beating one of the bosses w/ the grenade weapon equipped:
And here's the final boss fight:
Now granted, I got incredibly lucky at the end there with the health drops. I was trying to place safe but the pressure of being on the final boss after like, the longest game on the NES aside from Back to the Future... Yeah I really don't do too hot with pressure lol.
Definitely not saying it's an easy game, it's difficult for sure. But for all the wrong reasons, honestly.
Score: 2,252,680