Hey! Thank you for checking out our latest Vita game, hope you enjoyed it. You can contact me.
Keep up the good work with your magazine!
OST is now live on my Bandcamp! Go give it a listen!
And it's also available on my VK page, if you want to add it there
Hey! I didn't tested it on Linux. AFAIK, it should be possible to be run on Linux, but I don't know for sure.
As for PSP, no, it's not possible to make a build for PSP, though it would have been cool to make such port. I used this tag because there was so few Vita games and I thought PSP users still will get interested in this project, if they have Vita.
Hey! Game is still in works, glad you liked the demo.
I can't suggest any speciefic development kit for GBA development. You might want to install devkitPro - a toolchain which gives you the oportunity to compile for GBA. From that you just go ahead and make your games with notepad++ and tools for graphics and sfx of your choise.
I used this tutorial (which is on Russian), and which have an open source demo what you can use as foundation for your project. And you may also be interested in Tonk tutorial which was used by the author of first one I believe.