I enjoyed making my sticker truck very much :3 can't wait to see more from this project!

Hi Mimiki! Thank you for your kind words ^_^
The working area for the game is quite big, so you'll have to use WASD / Arrow Keys to move around! Items you buy from the store spawns on the left side of the workstation.
Some items require Right-Clicking (with the mouse) for further interaction. In the case of the Egg-Tray, you'll have to Right-Click it to pickup an Egg!
Other items require to be picked up / grabbed using Left-Click first, and then Right-Clicked. For the Egg, Right-Clicking it while picked up will crack it open!
We're thinking of adding a pop-up for the Controls for the next build to make it easier, since we found the controls to be not that intuitive as they are currently.
Thanks for trying it out and giving valuable insight ^_^ Can't wait to try your game! hehehe.