There's always a chance for hardware damage chaining devices together that were not designed to be used as such. To keep your hardware safe don't use it in ways that violate the manufacturer's guides and recommendations.
In this case? Probably just wouldn't really work, might corrupt save game data.
[EDIT]
Based on further research (read: exactly one DDG query) It appears the Action Replay is actually significantly more complex than I had guessed and functions differently enough from the Game Genie that they quite often simply cannot operate in tandem like this and can cause serious issues.
Read on if you'd like a cool story that has little to do with reality, or would like to imagine how chaining game genies might work if that was feasible :3
[/EDIT]
Based on my (admittedly not incredible) knowledge of how those devices both work, they intercept reads for specific memory addresses from the CPU and insert their own values. As long as they both weren't set up with codes to modify the same address very little would happen, it would behave as you might expect.
If the two both had codes that modified the same address the Game Genie would "win" here since it is physically closer to CPU in the chain. It would see the address matching one of its codes and spit back its value, neither the cartridge nor the Action Replay would see the memory read occur.
Yup
Sometimes I swear I must have spacial blindness. I can check an area 7 times and not see the thing I'm looking for even though it's there.
1st: Curly
2nd: Waffle
3rd: Shoestring
4th: Wedges
5th: Tater Tots
6th: Zig Zag
7th: Onion Rings
8th: Sweet Potato Fries
I genuinely love all of these, and struggled to rank them. Just a total potato gremlin.
These rankings also depend a lot on the source. So I just went with the best I've tasted of each.
I did a lil furry happy emoticon, but it got formatted incorrectly and I can't seem to get it to format correctly, so instead I'll just do:
Eeee!! Woof! :3
I got that post directly previously in my feed. Get out of my head, get out of my head
Yup watched this the other night, it's a really powerful way to put it that shows just how much tragedy is being brushed off.
That's tough but it'd have to be between Super Mario World and The Legend of Zelda: A Link to the Past
I still have a copy of Minecraft: XBox One Edition I got for Christmas one year. I have never in my life owned an XBox One and I felt bad for my grandmother who did her best.
I think I want to talk to my doctor during my next appointment o.o