I thought this bug is only for OS 2.53 MP for Ti 84+....
And archudel is funny.

But this morning, when I check the memory (in picture) with a little axe prog that I do, I found this :

DOORSCS7 encounters a fatal error.
[enter] to resume or [clear] to crash

anyone have a idea what can be ? ( He never shows me that)

I think I found the problem.
Looking at my list of best program I found that one of the snakes that I had on this calculator had also disappeared.

Then I interressed program that has appeared .... and I realized that Doors managed to read it ... and it was snake ....

Doors then bugged by removing it, but I managed to rename the prgm and get my snake

After, why Doors copied the snake in this program and is then removed with the Axe Parser, I do not know .... but I have a guess: reinstalling Doors on my calculator it warned that the battery was low ...

Ok I find a way...

Here the programme in a group and two pictures

In the apps menu there is after bug

Finance
Polysmlt

instead of

Axe
Finance
Polysmlt
DoorsCS7

Warning : please backup before use the group A

Yes, congratulation....  errr..... what?? this is a shell ? 

Fine. I have to make enemies (and find a way to display them !), complete menus and you will have the demo!   

I think you will have it before the holiday

And.... Wabbimetu doesn't work   :'(!!
 It alway send me an error when I try to run it. (sorry. I thought it needs installation, because I've never seen in use)

The probleme is I can't do screenshot  !!!!!!!!!!!!!!!!!!!!!!!     :'( :'(

yes, it is possible ...   

against, it will be necessary prevent that this program is only available for ti 84 + (the 83 + did not do this to my knowledge  :'().