Super Monkey Ball Jr. wɔ GBA so titiriw no yɛ portable, kakra Jankier cousin of console games. Woda so ara dannan asɛnka agua no so de wo bonsu no bɔ bɔɔl mu kɔ botae no so, nanso wɔn a wɔhwɛ so no te nka sɛ ɛyɛ den kakra —gye sɛ wotaa yɛ wo su bere a woabɔ GameCube nkyerɛase a ɛyɛ mmerɛw no awie no. Levels no yɛ bite-sized, a ɛyɛ adwuma ma ntɛm plays, ɛwom sɛ ebinom a akyiri yi no yɛ atirimɔdensɛm a GBA no kakraa bi adwene. Ɛnyɛ bɔne mma nsa a wɔde yɛ nsakrae, nanso wobɛpa saa abɔde mu nneɛma a ɛyɛ silky no.