Like @hippy dave already said, It is only possible to port Dead Trigger if you've got the source code for Dead Trigger. But you could also make a game wich is simillar to Dead Trigger instead.
---- THE ORIGINAL POST WAS IN GERMAN ---
English Version: ( translated by Voxel http://gbatemp.net/members/voxel.367536/ )
- This tutorial will show you how you can create a 3DS game in Unity .
What is needed?:
- A brain .
- Basic knowledge of C # , Javascript
- A 3DS so you can...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi