It looks as though
bughouse games are an abundant source of (albeit not strictly chess) studies training tactical vision
Just people 'blitz moves out' (with the clock usually being 2 0) and don't have enough time to analyse the games deeply.
I've been looking through the FICS DB for inspiration lately. I wished its game #3M to be interesting; it was alas aborted, but game #2999999 [
view,
save BPGN] that happened this Thursday night was actually quite interesting! (I guess, only moderately interesting in comparison with other non-aborted bug games, though.)
Here's a position that arose on its right board (Karlitos ~1900 with White vs SammySiljkovic ~1600; bug ratings are inflated, though; 1900 is about average) after Black dropped a bishop on e2 (!!) and White accepted the decoy sac (instead of dropping a bishop himself on d1, which was a safer option).
Pieces held in reserve (available for drops)
White: Q, 3xB
Black: Q, 2xN, 2xP
Black to move and win with no inflow of droppable pieces to either side (White on the other board had more time on the clock than White on this one, so could afford to 'sit', waiting for mate on this board).
(Remember that drops are denoted by '@', e.g. P@e6 = a pawn drop on e6, instead of a normal move, and that pawns can't be dropped to the 1st nor 8th rank. Black also had a bishop to drop at the time in the game, but I don't think it was necessary, let's do without it.)