Hi Grulemart! Glad you had some fun with it! And your English is great, no need to apologize! :)
If you're interested in the code that I wrote for the game, just go to my page on lexaloffle - https://www.lexaloffle.com/bbs/?tid=31736 - games uploaded to the BBS have little 'CODE' button beneath the game screen. Just click on the 'CODE' button, and all my code will pop up for you to read! Alternately, if you own a copy of PICO-8 (https://www.lexaloffle.com/pico-8.php), you can open up the code from inside the game to edit and experiment!
Thanks again for playing. :)