Looks nice - very "Blocko" style. You could probably take a lot of triangles/stacks/vertices/etc. off the fuse of the bomb, though, and keep the same amount of detail, to reduce lag.
Example of what I mean attached. It's made in Blender, but still the same thing applies in all 3D programs: both models here would show up looking the same in-game but the left one would be a lot slower to render.