It came preinstalled, however it is not “installed” but a link to a web game. How do you get rid of it? :s
Remove the link
Right-click on the menubutton and choose menueditor. Here you can remove the menuentry.
right click on the menu button button, edit applications, find the application, right click and delete work. Thank you.
I found some other solution (because don’t know about easy way before)!
In terminal (Konsole):
This show all files in menu. Then remove file: