As the title suggests, these ideas are kinda silly, and I'm not sure if they'd actually work - but I'm posting them anyways, because they FEEL good.
Just disregard them if they make you roll your eyes or whatever.
Harpoon gun rework - simply put, give the harpoon gun two modes - the regular with a shorter range and a secondary mode with the current range and the added ability to grapple onto any surface - this way, it would become a much more tactical tool if done right, such as an escape mechanism.
Heavy harpoon gun - make it a big harpoon that lodges into the enemy ship and slowly pulls it down for ten seconds - at a much slower rate than a popped balloon of course, but also adding to a popped ships descent.
A new engine booster - make it sort of catapult the ship forward but breaks the engines completly - might be OP for ramming purposes.
Again, silly ideas, but still, with the right modifications, dumb stuff can become good, so if you got any feedback...
Anyways, that's it for me. Thanks!