Thank you for trying out Mathematical Base Defenders!
A couple of things to note:

• Mathematical Base Defenders is currently in its testing stage, therefore:
  • Game content is incomplete and subject to change.
  • Current product is NOT indicative of final product.
  • There will be lots of bugs and performance issues.
• This game is best played with a keyboard. However, if you don't have one, there is a "virtual" on-screen keyboard available. These might be slow on tablets and phones.
• To log in to your user account, go to Settings, then Online.
• To register for an account, go to the accompanying website here.
• To request a feature, report a bug or to contribute, please do so in the game's communication channels available on the accompanying website.
• As of 0.4.10, to prevent abuse of server resources, please do not mash the keys on your keyboard, as it may lead to anticheat falsely flagging and disconnecting you. A future update will make this anticheat function more accurate. (Don't worry, getting flagged for this reason has no punishment)