Star Jacker
From Sega Retro
Star Jacker is a shoot 'em up video game released for the SG-1000 in 1983. Unlike most shoot 'em ups, the player initally controls four space ships, losing one each time the player dies. This means on the first life you will have four times the amount of firepower than on your last.
Like Xevious there are two types of weapon - forward lasers for flying enemies and bombs for bases.