V6.1: 25-Jan-2022 by wavemotion-dave
- Added full MSX keyboard overlay - Choose "MSX Full" in Game Options.
- Improved ASC8 mapper so Bomber King, Batman Rovin and others now playable.
- Added SRAM support to make Hydlide II, Dragon Slayer II (Xanadu) and Deep Dungeon 2 are now playable.
- Added 'beeper music' sounds so games like Avenger, Batman - The Movie and Masters of the Universe have sound.