I doubt it'll be played multiplayer much at all.
my experience
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Opened, worked out only some controls, died (though no message showed up - the game just paused a few seconds later). Read your comments, played 1st game, played and reviewed, returned to this. Played controlling both at same time. Found they have different jump-dynamics. Best way to get through was to line them up then press both keys at the same time. It's actually kind of interesting in a way.
I died maybe 12 times, got about 15s into the level on my best go (as far as the mirrored 'L' .
aspects
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-----: terrible hitbox on the 'replay' button'.
---: the first time I played, death wasn't properly recognised.
--: no instructions. I know you say it's part of the other game, but given that it'sa seperate submission, it should have instructions. Anwyay, the other game doesn't have full instructions for this. I mean that it should technically instruct us that the winner is the one to stay alive the longest. And what happens if we both stay alive?
-: Most folk tend to browse NG alone. And if you're browsing with a pal, you watch movies. I'm just saying that multiplayer stuff isn't gonna be played multiplayer unless it's amazingly good.
---: The single-player levels were too easy. I think you should have made new multiplayer levels, maybe partially randomly generated (since the RNG affects both the same way, I'll condone randomness here).
-: should keep a count of wins/losses
+++: apart from the one glitch, it worked well.
+++: simple to pick up.
overall
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Multiplayer games need to be awesome to be played as intended. But this game does have potential to be awesome. Shorter stages, increasingly speedy, getting stupidly hard at the top... somewhat better control, maybe stretch and squash implemented when bouncing...
I think you should lay off for a while though. I get the impression that your AS isn't yet up to scratch.
But keep at it. Do other things. And you'll continue to learn and improve.
Stay funky,
- Bez