Pair character magic (like Ax Battler's earth or Tyris Flare's fire) with the elemental breath of your current beast to create devastating combo attacks.
The ability to mount and fight with creatures was one of the most innovative and beloved aspects of the original series. Modernizing it with a high-stakes survival loop fits the PSN's ecosystem of online competition and arcade-style replayability.
Use "Tribute" collected during the run to temporarily buff your mount's health or speed, similar to the upgrade systems in Golden Axe: Beast Rider . Why This Works
Compete for the highest score based on kill streaks, beast variety used, and total survival time.
For a new feature for on PlayStation Network (PSN), you could implement a "Beast Tamer" Arena Mode .