Pulling out the hacker part:

  40 points for > 10 million yen salary ($91,000)

  10 for a bachelors
  20 for a masters
  30 for a phd

  20 for 10 years experience
  15 for 7 years experience
  10 for 5 years experience
  5 for 3 years experience

  age
  15 for <29
  10 for 30-34
  5 for 35-39

  15 for a patent
  15 for 3 academic papers
  15 for 3 academic grant

And bonuses for language proficiency, working for small-medium companies that spend on R and D (startups?) and holding a foreign qualification.

With the right salary ($91K/year):

24 year old, with bachelors, and 3 years work experience? you are in.

40 year old, with bachelors, and 10 years work experience? you are in.

Remarkably open. Far more so than the US.