I wouldnt keep going for the bonus if i was you mate, especially if youre down on the game. I got the bonus within 30 spins and it paid £89 (£2 stake) that was on the 15 spins 1x start. Ive managed another 10 bonuses probably, always choosing mystery and best win was probably 100x, like all Megaways games the potential is there but dont skint yourself chasing it. If you do bonus it, hope you land a monster.