Comment in the reviews who you think created this secret Santa level! The level authors will be posted on Christmas day (US time zones)! Ho ho ho!
Candidates:
Allpollo
DeathRanger999
MathMasterZach
Panacea
Patashu
Reach
RisingStar111
Excellent.
I was pretty tricked, at first. :))
Pana or Reach seem most likely authors (will decide, later).
EDIT: I decided this is most likely Reach's level.