Also, I've seen 84s out there, SE and BE, that have never been updated since they were bought. One had an OS with a version number that started with 1!
The point of this is that the OS may be super old, and the error it's throwing may be legitimate.

In fact, trying to do {A} will just get you the Ath byte. In case you're using 0.5.3b and run out of vars, There are Axe's secret Vars, X/Yt1-3, accessible under the Parametric section of the Y-VARS menu that comes up when you press the VARS button (sorry if I'm overexplaining)

Yay! Wait, what?
I group them manually, if that's what you're asking.

Hey, guess what?
Nymless has new features!
I figured out how to have multiple levels on calc: Groups. No, really.
It's not perfect, but at least I can make levels while I work on fixing the Save program.
I also added some new features!

Mines explode individually!
Inverse mode is a go!
Lock finder!
Door finder!
All-three finder!
Restart button (only works when dead)!
Explosions actually behave!
Quicksave remapped to Y= and Clear! (Protip: Hold Y=, THEN press Clear.)

I'll upload it laters. In the meantime, have fun with the longing

2138: You give out free link cables and tell people how to use them

I like the idea. I've never played the original, but I am looking forward to this all the same.

Good enough for me!

Niiice. Did you make that?