Beta 1 vs. Beta 2

As we don't actually have a copy of the Beta 1 ROM, the following list is derived from the Beta 1 screenshots we have. (and for that reason, music/sound cannot be commented on!)

Main differences:

• No copyright info on title screen
• Robotnik isn't in the final boss room!
• Slightly different graphics in Toxic Caves
• Robotnik animations (which aren't present in Beta 2 or Final)
• Doesn't appear to be any lava in the Steam Arena
• Bonus tables different