A clearer view of what stays unknown
The 5x3 grid of Elvis Frog in Vegas pays from 3 matching symbols on 25 fixed paylines, but how often the Free Spins bonus starts is not known in advance. Its trigger needs 3 or more Star Scatters on reels 1, 3 and 5, and no reading of past rounds predicts the next one. The result of one session is random, whatever the 95.3% RTP says.
The 95.3% RTP is the only version listed for Elvis Frog in Vegas on this page. Which version runs at a given moment is shown only in the game rules, so check there before the first spin.
The x2,500 maximum win of Elvis Frog in Vegas is a ceiling reached very rarely. At the highest bet allowed here, A$25, that ceiling is A$62,500, and no session can be planned around reaching it in advance.