I'll start throwing out some clues here
50
- Red > Green. Green > Blue. Blue > Red. Purple > all.
49
- There could be up to 4 previously unvisited countries on your itinerary.
48
- Those precious collectible gemstones are found in the levels here, rather than in bonus stages like in its more powerful namesake.
47
- Robotic animals take each other out in a title from on the biggest developers out there (who were going under a different name at the time).







