I love this game, so intuitive. I only have a few gripes though:
•Obviously, more content. At one point I was maxing out everybody before nuking
•Ability to walk or 'crawl', since upgrading your own core too much makes it almost impossible to precisely see where you're going
•Adjust the auto-pause because I want to afk an idle game
Aside from my praise, I would also suggest two features from the original:
Overview screen(s) where you can buy multiple of each creature in its category (advanced view options on original)
Disabling of upgrade notifications - I ignore twins during the early game, would be nice if the notifications for specific upgrades could be turned off
I think you should give some whitespace around the currencies to emphasize them. The first few minutes of play, I was very confused at to what I was supposed to be doing.
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Try tapping on the upgrade arrows ... you can disable them from showing on the global UI