Which outcomes can no one forecast?
The 96.53 per cent RTP is an average over a very large number of rounds, not a promise for one visit. How often the Free Spins or the Jackpot Reveal Bonus Game comes is not known in advance, so a session can contain many triggers or none. Whatever the RTP, the result of one session is random and can end well below or above the stake.
At 96.53 per cent, the RTP shown here belongs to the version listed in this lobby. Which RTP version a game runs is shown only in the game rules, so read that screen before you play. A different RTP version changes the long-run return, and the lobby label alone does not tell you which one you have.
The x12,000 maximum win of Mustang Gold is a ceiling that is reached very rarely. At the A$1 top bet used on this page, the ceiling equals A$12,000, and no player can know in advance whether a session reaches it.