Thanks for playing!
1. I do agree that the game should be able to be played with keyboard online
however the selecting rival system is a limitation of the plugin and can only be done with mouse. I might be able to add hotkeys assigned to it like 1234 example.
I have to check into it later.
2. I have changed how the growth works a bit in next update and every update after will introduce more ways to play with height by either games or other things.
3. If you survive the timer the portal in middle of the map should open up when the timer expires, I will add a text message saying so, apart from that I will also make her game a lot harder so be prepared for that :)