Gotcha - aye... I think it is a solid game jam submission though and like what you managed to get done. I commented elsewhere that I think the hard hard candy stripe height target was maybe too bold as well and maybe with more of a transparent 'chalked' line type effect would be cool. Seeing your previous highest pointed too to remind the player that they got higher before and then as they approach it the tension can grow... Keep reminding them of their PB...
I was thinking another cool design could be giving the player choice of the next elements so they have a bit more control over the tower as it is built. Possibly then with a warning that no choice is coming in X turns and then it is going to be Y... May allow the player to be more strategic.
Keep coding and building games... Congrats again on the submission!