Hey ^^ thanks for the feedback!
I just added some emission to all items and lights to the emeralds and diamonds for the post-jam version, that helped their visibility a lot and makes them look even more attractive to collect!
Also, I already experimented with rocket rotation in the past, but I'm not sure if that would work well for this game. If you tilt the rocket sideways (and the hitboxes shift accordingly), the movement becomes surprisingly unpredictable and complex. So it would have to be a very subtle tilt to the side that doesnt affect hitboxes, i'll give that another try :)