Hmm, pretty interesting arcade game! Certainly makes a great first impression with its very authentic retro-arcade presentation: I do love me a classic attract/demo mode to learn about the game, and this delivered!
I do think this has a lot of potential from some fun times, what with its deeper potential strategies involving squashing enemies with tiles or combining them to form the numbers you need...but I will admit that I had a rough time getting into this! My feedback would be thus:
*I found it odd that you need to hold a button to push a tile instead of just naturally walking into it: just felt really awkward and unnecessary, what with the game not making the character sprite look any different when its in pushing mode, and while not holding push mode lets you go over flat tiles, wall tiles still block you, so it can be weirdly inconsistent despite seemingly allowing more freedom.
*Maybe I'm missing something or just being unlucky, but I felt like I was getting screwed over by tiles constantly spawning on the edges of the screen where I can't do anything with them except push them over the edge since, to my knowledge, we don't have a way to pull them in.
*I can't figure out how the math works when you combine tiles: I thought I had it at first, but then I started to get unexpected results that just seemed to make no sense. Maybe the order in which you combine them makes a difference as well? Without being able to rely on that mechanic, I gave up and it again felt like randomness screwed me over since there were times I just couldn't find the number I needed to complete anything.
*I don't understand the time limit as it feels very short and doesn't seem to refresh when I complete matches? Feels like you can barely get anything started, especially due to the aforementioned annoyance regarding so many tiles being spawned in areas where you can't use them, never mind waiting for tiles with good numbers to finally show up.
*Dying is a bit of a bummer in the way it resets the whole board instead of letting you continue where you left off: sucks to be so close to finishing a match and then having to start from scratch while time ticks away.
So yeah, I tried to love this one, but confusion and frustration were unfortunately in high supply here! There's definitely something in here, but I'm just having a tough time understanding it: hopefully this can provide some insight for the final version!