/vr/ - Retro Games

It was like Contra except top-down. It ran on my Windows 95 but it may have been MS-DOS, I can't quite remember.
The game featured you as some small army guy with a rifle. You killed aliens, got power-ups and fought a few bosses. One of them was a big ship in a blue room that had 4 cockpits, shot bullets from itself and fire bursts from a big cannon on the front.
The second boss was in an area with a lot of train tracks, little carts whizzed by, then this huge one comes on screen at shoots a "plasma beam" at you.(pic related) You could use the plasma beam if you got the plasma gun and a few "power" power-ups.
The last boss was a skull whose eyes would flash before shooting plasma beams at you. It had tendrils all over the room and those had pink balls attached. You had to shoot these to hurt it.

That's about all I can remember.