Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Rex: Another Island is a platforming adventure inspired by the classics.

Featuring:

• Open world platforming action, contained in a single huge level.
  
• Many unique areas, each with their own motif, challenges and music.
  
  The Forest, one of many areas in the game
  
  
• Zoom between shrines and fast-travel to new areas if you get stuck.
  
  A shrine and a rare gem
  
  
• A checkpoint system that you can use to make the game easy or difficult... take your time and explore or zoom past everything to top the speedrun leaderboards.
  
  Checkpoints save your progress but slow you down
  
  
• 777 coins to find... collect them all for a secret ending.
  
  Put your platforming skills to the test, for fun and profit
  
  
• 5 hidden gems to find for a another secret ending!
  
• Full soundtrack by Pete Gresser (Reimagine: The Game)