This is a fien arena shooter, though devilishly difficult.
Most hoem perts, inclusing the very goos SNES versin are toned down and change daorund a bit.
I'm talkning about the arcade original.
Can it be one life cleared? If the difficuulty is on factory default, it is doable. But it does take a certain amount of luck.
Here's my lore for the game.
1) Secret warp #3 is an error condition. when it happesn the ame randomly send you to the next or previous level, and tells you Secret Warp Activaed. it is the error macro function for recovering from a non fatal error. ther are NO secret roooms in the arcade despite the 'SECRET ROOMS NEARBY!!!" message that refers to the key rooms after die cobros.
2) There is a rumor that if you are facing away from an emeny that it can't hurt you. This is 100% false. however it does seem like it at times. here's why. you are allowed a certain amount of contact time with enemies before death. facing away and rushing at it means that it dies the instant it touches you, so less contact time. Contact time is affected positively by surviving a long time (you slowly get lost contact time back) and also positively by dieng (each time you die the allotted time gets a little bit longer)
3) The game is rumored to adjust rank by the DAILY high score list. if the daily scores are high, it will be tougher.
4) A second player really really helps a LOT. Try an d find a competent partner.
5) orbs are nasty. practice is how you deal with them.
6) large swarms of enemies are decimated by powerups but can mow you down if you don't have any. so get all powerups. with two player this is less of an issue because half go for one player and half for the other. two playesr can take down the largest hordes of enemies in the game wit h just their peashoters!
7) Don't waste powerups. this means 3 things. 1 when you have a force field/sawwblades save your weapon shots and use the forcefield to mow down stuff. 2 try to use up on e weapn befor getting another, but don't let one vanish completely to do it. 3) don't shoot at dead space. make your shots count.

9) If the powerup gods are stingy, scar face will be an absolute nightmare. hopefully you collected many extra men before then? this is where you will lose a lot of them...
10) i'm sur ter si soem secre to manipulating the powerups. but i'll be damned if I know what it is.
11) Only play on rev 8 or higher roms. those you can actually get to the pleasure dome in.