When I first started playing this I exclaimed "this is cool," because, well, this is cool. The idea is very easy to grasp and is a solid concept, and as soon as I saw a second minigame I was pretty excited.
Sadly I was less excited when I never ended up seeing a third minigame. But when it did feel like I was going to be discovering a bunch of cool minigames, that was a very nice feeling. This game does a great job of being easy to learn, and if it had those extra minigames it would be a great game that people could pick up and play.
One nitpick: the music is only twelve seconds long, which is much too short when you play the game for a long time. By the way, I ended up with a score of 4222.
I do have one substantial criticism, which is that I'm not sure if this game can function as an arcade game. In particular, arcade games are, in my understanding, meant to be playable forever if the player is good enough. However, this game would be impossible for a player, no matter how skilled, if the game sent minigames at a rate so fast that the player would be unable to beat the heart.
As a result, there is a difficulty ceiling in the game--it is never allowed to get more difficult than a certain point. And this is a problem, because arcade games should optimally have constantly increasing stakes--at least for the players below the very high skill bracket.
I think I definitely am in the skill bracket that could conceivably play the game forever given its current difficulty ceiling. I'm guessing the game could be made a bit more difficult while still being humanly possible, but I'm worried that it might not get hard enough to really be much of a skill gate.
That said, I'm sure there are ways to make it work. This is just my broad sense of a failing of the game as it stands now.
One thought that comes to mind is that having a larger variety of minigames could very easily fix this problem. When I only have to deal with two different minigames, it is quite easy to not slip up for a very long time. If the mouse movements required vary even more, then having to quickly determine what to do could be enough additional difficulty to allow the game to escalate more intensely.
Or, of course, the game could be allowed to be rather easy to play indefinitely. That's not necessarily a problem. Or it could escalate the difficulty to mathematical impossibility. That's not necessarily a problem either. Both of those possibilities would just make the game a little less of a traditional arcade game.
Anyways, if you figure out which way you want to take the game in that respect, and add in those extra minigames--this game would be a very solid game. The graphics are already absolutely fantastic. I think saying this game feels like a good game that is simply unfinished is not a particularly shocking take.
I hope this feedback is useful somehow! 😄