I have found 2 bugs with the charged attack of these guns:

The charged attack of both guns fires a large bird at the end of the sequence and in this is where the problems lie.

1) The bird explodes immediately upon contact with any Royal Mini or Jelly Green Mini. I believe that the bird should pass through these like it does with any other monster.

2) When standing against any wall or object (that you cannot shoot through normally) and facing away from said wall or object, the bird explodes immediately upon being fired as if it has hit a wall.

Note: Bug 2 does not apply to low walls or obstructions that can be shot over normally.

Thanks.