DoDonPachi Dai Ou Jou Black Label EXTRA, the Xbox 360 port by developer 5pb of Cave's arcade bullet hell shooter, was originally announced for Christmas Day 2008. Then it was delayed.
Then it was released the following February, buggy. 5pb's port was so buggy that shipments of the game were halted.
The company also struggled with a port of another Cave arcade title, Ketsui. (No wonder Cave began porting games to the Xbox 360 itself instead of farming out the work to 5pb!)