This is a really neat game. It reminded me of one of the UFO50 games Magic Garden, another score chaser that has the world space slowly growing more complicated, which leads to more danger but also more opportunity for reward.
I think I had the most fun when the screen was getting full and I was trying to farm more score while keeping a path to a portal open. It's a constant battle of push-your-luck, and when new bombs spawn that open up path to bomb clusters that sudden chain reaction and score bump feels great.
Kolydr leaves me with a strong "one more run" component and I'd love to see this explored some more.
The sound design is excellent and really helps me get into the flow of play.
I think my main complaint is that most often when I die it was because a block spawned underneath me and I din't react fast enough. That doesn't feel great and naturally happens more easily as the game speeds up and closes in.
All in all though, great little game!