Added patch, to change the duration of oxygen underwater, also updated the screenshots, the update was still showing images that no longer represent the current state of the hack.
On the other hand, the changes in the ROM information had not been reflected either.
This is a boss rush hack similar to the hack Donkey Kong Country: Boss Blitz, also by the same hacker. Unlike DKC: Boss Blitz records are saved for each individual boss, as well as the total time. There is a options screen for changing various things such as starting Kong and team color.
It is also possible to play with a second player and fight a single boss.
ROM / ISO Information:
Donkey Kong Country 2 - Diddy's Kong Quest (U) (V1.0) [!].smc - GOODSNES 2.04