Dekita Yo! Mama. - Wannyan Club - Onnanoko ROM Download for Nintendo DS (NDS). Dekita Yo! Mama. - Wannyan Club - Onnanoko game is available to play online and download only on Roms Games. Dekita Yo! Mama. - Wannyan Club - Onnanoko ROM for Nintendo DS download requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.