Zwei II Plus is an updated version of Zwei II. It introduces compatibility with the Windows 7 system, as well as the following features:
- A new high difficulty dungeon called Dream Maze II
- A new survival mode accessible at the G Colosseo, which puts the protagonists into consecutive battles
- Re-balancing of enemies and food needed to upgrade the characters
- The Penguin character from the G Colosseo is now available as a pet
- A new weapon called Muscle Gear
- Vending machines sell trading figures, and there are more item rewards
- New costumes for the protagonists Ragna and Alwen
- The possibility to fast-forward and skip events
- Paid service to decrease the difficulty of the skiing mini-game