PICO-8 is a lot more "direct" and straightforward and I love that. You can go on the PICO-8 website and I think you can look at any cartridge there to have an idea about the difficulty of the code aspect (there is a little link/button at each cartridge which will show the code).
And yes, the double attack card was intentional to not make the game extra difficult, but now it is maybe too easy :/
edit : and thank you by the way!