Final version with a bug removed posted at end of thread .
A small run of carts will be available from Good Deal Games Homebrew Heaven !
It will be available at Midwest Gaming Classic in April, and then for sale on their website afterwards.
I do hope that some folks will want to purchase one even though I have made the ROM available.
Final improvements as follows:
Default option is multiple shooter ( P0 diff B) with more challenging option of single shooter . I also lightened the enemy colors so that they are easier to see on CRT TV.
The final boss ship shoots two lasers as the other 2 shoot only 1.
The shield now drains 5 power units and cannot be activated if there are fewer than 5 time units remaning.
The outside batteries are larger and are hit more often.
Edited by easmith, Sun Apr 22, 2018 7:04 AM.