Hi! Thanks for the positive comment! I'm glad that someone is interested in my games - especially the games on modern platforms. Unlike my C64 games, they haven't caused much of a response so far.
When an idea comes to mind, I incorporate it directly into finished games - if it's not that complicated!
I work alone. Which is sometimes a bit difficult. hahaha I'm currently working on a game where I added controller controls for the first time, and then I added that to Vault of Seraphim XL and Brek'n'Bubble XL too. I always play with a keyboard and I wasn't really aware that many gamers prefer the controller. But from now on there will always be games with controller support.