Operation Highjump: The Fall of Berlin has already taken the most important hurdle - the (low) goal of the Kickstarter campaign (6,000 euros) was outbid by 200%, the game should appear on PC, Switch, PS4 and PS5 this autumn. In the mega-designed game scene trailer (see below) there is still action and Nöcher, plus a few simple switch puzzles. So the game seems to be much closer to Metal Slug than on the other influences mentioned. By the way, if you are not familiar with Metal Slug: Simply introduce you to a beautifully pixelated 2D platform shooter, in which you can eradicate hosts from enemies like in a contra/proBotector. Operation Highjump does not look as elegant and quick as the neo-geo classic in terms of action, but the offered is really worth seeing.
If your interest in Operation Highjump is awakened, then do your favor and read the elevator Kickstarter website carefully: there are views behind the scenes, voices of the Spanish developers, beautifully pixelated artwork and much more. Of course also tens of stretch goals-from the physical version with artbook to your own arcade machine.