The bomb will be like a Blast Jelly exploding! After the main explosion, there will be little jelly things that explode The gun will be like the rocket puppy's rockets! The standard attack will be miniature versions of the rockets, then the charge attack will be the real rocket. The rocket will track enemies down, so when they dodge, they will still get hit!
Good luck to you all,!
-Pery
I could imagine the Blast Jelly bomb throwing the small jelly cubes randomly within its radius. For the rocket puppy gun which you claim is "accurate" I want to say that rocket puppy rockets can be dodged. Please add more details though, even just concept art can get you really far.