If anyone wants to undertake it... in its current condition... making classic arcade games is totally possible within the FPSC structure.
As entities have the "anywithin" command, 'launching' an entity at them would trigger the following command-action set.
:anywithin=20:destroy,activateifused=1
score tracking would be done by counter...
:activated=1:incstate=1,activate=0
:activated=2:incstate=2,activate=0
although, transition of score to screen would be a nearly impossible task... only adjustment of the plrhealth could do this.
Basic movements, used in space invaders, would probally be what the games would be limited to, due to the use of "anywithin" as the kill factor.
As for the gun... scancodeing the spacebar (and locking the plr via teleport loop) and spawning enemys that use
::movefore=3
:anywithin=15:destroy
as their scripts (possibly adding in activateifused to delimit the fire rate)
:activated=1:timerstart,activate=0,state=1000
:state=1000,timergreater=3000,scancodethingy=weirdnumber:activateifused=1
Either way... as I see it... possible... but not done.
And that is just the spaceshooters... I am certain that others like centipede could be made (after all, only the 'head' can't touch other enemys, and if the settargetname is an action, then they could followtarget (or similar)) if people took the time to try.
Wisemen are hard to find, they are tarnished by sayings and quotes that are not of their true nature.