Consider the C64 version a port of the PC version, so I couldn't add anything different. HERO Is Back 2 for PC, however, has new features like new enemies or breakable horizontal walls. If there's ever a port of HERO Is Back 2 for C64, it should have those features. Levers or secret passages could be added to HERO Is Back 3, but it's unlikely it'll ever happen. To be honest, I don't even know if I'll produce any more work for the C64. After the long break I've decided to take, I'll make the necessary considerations.