Tamagotchi ghosts

[busker]

They soon stopped feeding them,
forgot to give them exercise,
no water for days, always an excuse,
always me who stepped in
to try and revive them.  foreshadows the revival in S3. I like how S1 sets up the rest of the poem with its little details

The boys left home,   the temporal setting of the poem becomes clear
all their unwanted childhood  I like 'unwanted childhood'. Unwanted for the kids, dear to their parents
stashed in boxes,
I found the dead Tamagotchi’s does this need an apostrophe?
at the bottom of an assorted Lego box.  

They where buried with memories
I'd thought forgotten,
I tried for hours to revive her,
but some things
are just programmed to die.

If I listen too hard, I can still hear the breathing
on nights when I can’t hold my breath any longer.   the futile trying to revive ghosts. The only thing that bothers me is the holding of breath till breaking point. It's a distraction, because there's no reason that you'd really be holding your breath. It suggests fear, foreboding, etc. which is irrelevant to the poem

Lovely work