Kero Kero Keroppi's Great Big Adventure 2: Trouble in Donut Pond ROM Download for Nintendo (NES). Kero Kero Keroppi's Great Big Adventure 2: Trouble in Donut Pond game is available to play online and download only on Roms Games. Kero Kero Keroppi's Great Big Adventure 2: Trouble in Donut Pond ROM for Nintendo download requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.