beta update 4: changed health and shield system, changed menu map completly, added new enemy: bomber getting near to full release 4/3/2023 beta update 3: added extreme map (1941), added spawn friend power up for 10 sec, added new enemy (torpedo bomber), added score (will be improved next update) beta update 2: added first boss. changed menu a bit, started preparentions for soviet campaign, added damage upgrade, added london map (3/1/2023) beta update 1: made a pattern for starting planes, changed menu, made first boss (not added), changed bullet sprite
