Can I simulate keyboard keys on Android without a physical keyboard for a game?

[jay_square]

I'm sure by now many of you know about the game agar.io and some of you are probably even addicted to it, as I am. I recently bought an otg cable for my yu yureka, and tried to play the game with my mouse on google chrome on my phone. The mouse works perfectly with the game but the problem is that the game requires two keyboard buttons, one to split and one to spit. I do not have a bluetooth keyboard or mouse so the mouse takes up the mini usb port when plugged in. I wanted to know if there is any way I can simulate the keyboard buttons (spacebar and w) on the screen of my phone and use them while playing the game?
Any help is appreciated.
Thank you in advanced.