* Only two player characters and 3 levels in the free 16KB version. The 64KB will feature (at least) 3 more C64 exclusive unlockable level re-skins and many more player characters.
* No flying enemies in the 16KB version. These will be in the full build.
* The 16KB version will not have the option to save scores or have any of the weapon/level/character unlocking logic in place. The 64KB version will provide a code to save your progress against a player profile with collecting crates unlocking new weapons/levels and characters, like in the original.
* The code provided will (hopefully) be used in conjuction with a website to keep a worldwide record of the total number of C64 crates collected.
