If you finish all tracks on the first planet (Mercury) in 2P mode "The End" screen shows up. This hack removes this limitation, now you can race on all tracks on all 9 planets except the final track. Every track has 100 seconds of extra time and 9 continues. It was done because of high difficulty of the game.
No-Intro Name: Galaxy 5000 (USA)
(No-Intro version 20130731-235630)
File SHA-1: CD11E05E8EAED1D3158E88857DF0FCE270AE7FF6
ROM SHA-1: 583E112FD794AD3B9BCDAE23EB22005C208AA4EE