Buying ticket at Traveloka is easy and a lot cheaper and actually it is a fun place for kids. Unfortunately, the rules are too strict and not as flexible as other play areas. My brother needed to go to the toilet, but we had to request permission several times until the staff gave us permission to switch the guardian. Based on the time we got, we should leave at 9.30, but around 9.15 the staff had already announced that we need to leave the play area.
In addition a door to an area full of electricity cables and power was opened. Luckily no kids entered that area.