so a few things i recall from this game is are the following
1. you could play this game with two players, player one was a plane/spaceship with red wings and player two looked identical with blue instead of red
2. you had three sorts of attacks each having a differnt pick-up color, picking the corosponding color to your current weapon upgrades it and you can upgrade it 2 or 3 times
3. there is also a rocket pick-up which allows you to fire rockets straight ahead and tracking ones (i think)
4. you could destroy objects in the background
5. at the end of each level you fought a boss
this is all i can recall from the game it was played on the pc, iam not sure if it was a windows or dos game