Do 40 spins on big bamboo (u can base the stake on the current balance) and every time you get 2 bonus symbols u buy a red bonus and try to gamba it up to a golden (if u get a bonus in the base game u try to gamba it up aswell) when u are done with this buy one bonus on retro tapes (same here with the stake)
IMPORTANT: play the angle song while doing mine
good luck to everybody