Cool idea, and the graphics look good (even if they don't actually line up with the 64x64 grid). Like some have said before it would be nice to be able to see how much health you have. The flashlight effect is also cool. Combat does feel a bit wonky, though and I never really found the computer, the game just ended a few minutes after I found the last keycard.
Viewing post in Aliens And A Gunslinger jam comments
That last bit was intentional; we were going to make the game a bit like a Wario Land 4 stage where you'd reach the end (the computer in this case) and then go back to the beginning within a time limit, but we didn't have enough time to do that so we made it like it is. Would've added the UI showing the remaining health and keycards too, but same excuse. Might release an updated version with those things.
It's also the first time I've created a combat system of sorts, so there's not much I could do about that :P