now, as for the real feedback: i really think that this game is good. i'm not talking in context of the jam, i'm talking in general: i found the idea behind the game really clever, since the way you revisited the pinball concept was honestly interesting. as such, in the next lines i won't be speaking about what you did right, but i'll say what can be done even better, to really bring the game to the next level. obviously, it's just my opinion, so don't take it too seriously, but i'm saying all this because i think that with a little polish this could really shine. also, what i'm going to say it's mostly about the player's point of view: as a developer, it's your job to decide if there's something to change or if what i experienced was in line with the experience you wanted the players to have. finally, probably you already know some of the weaknesses i'm going to point out and you just didn't have enough time to work on them - which is totally fine because again, this game is good.
my main grip with the actual version of the game is that at first it's all a bit confusing. the tutorial felt long and not very clear. i had to die the first time to understand that i didn't understand what the goal was. when i started placing objects, i didn't know exactly what they did, nor what or how many objects i had left. not knowing this kind of stuff can be something you decide to keep (at least partially), but giving the player some kind of bigger picture can help them better planning. also, about the tutorial, i'd definitely lose some words and keep it more graphical: the steps and controls are not that easy to master, so i'd say that it's easy to lose yourself at first.
another thing you may want to (maybe) reconsider is the balance between frustration and reward. it's not easy to reach the goal in general, also because there's a bit of luck involved, so starting each time from scratch can be more frustrating than rewarding for someone. i'm not saying you should totally remove the limited-balls-per-level idea, but maybe it could be nice to choose: an easy mode with infinite balls, so that when you die you just restart the level, and a hard mode, like the actual version. there could also be just the easy mode, and the less balls you need to complete the level the more points you get. obviously this kind of mechanism is nothing new (see this for example), and i'd say that people tend to like it (i would), so it's something i would experiment with.
besides these two main points, there's not much that needs to be added. the graphics are simple and maybe a bit rough, but they do their job. the music in the beginning tutorial doesn't loop (at least on my pc).
what's left to say? ah, yes: you really did a good job.
