It took me an embarrassingly long time to realize that you could upgrade batteries too. Me cramming in 20 1x2 batteries to be able to afford the 10k power for a body expansion. :D
You are not alone buddy, happened to me too! >_<
Thank you for your comment!
Hopefully the new "Upgrade Mode" UI I plan on implementing will solve this problem of upgrades being "hidden" behind a tooltip and a menu!
I didnt realize you could rotate for like 2 hours :(
