It is OK to edit a system level, but you MUST save the level in one of your own games. You are not just taking a peek at the hidden ladders and fall-through bricks, are you?: -)
Pódese editar un nivel do sistema, mais DÉBELO gardar nunha das túas propias partidas. Non o estarás a facer para achar as escalas agochadas e os bloques soltos, non?: -)