Portal Pinball is definitely an excellent addition to the Zen Pinball 2 lineup, but that is based purely on its solid pinball mechanics and roots. The Portal aspect comes across as nothing more than cosmetic, which seems like a lost opportunity.

Zen Pinball 2: Portal Pinball
2015 Zen Studios81Great
Overview
Aperature Laboratories presents the Heuristic Portal Pinball Device proving that science is not merely beneficial but also quite fun.
Reception
- Metacritic83from 8 reviews
- OpenCritic84from 7 reviews
Besides some balancing issues that can be justified in teaching newcomers the ropes, Zen Pinball 2: Portal is a wonderful table and should be a natural starting point for any new pinball player's career towards the more challenging tables out there.
Zen Pinball 2: Portal Pinball is a marvellous experience which makes you want to pull out the Portal games and play them all over again. Zen Pinball fans can absolutely download Portal Pinball with confidence but even those looking to travel down the Portal memory lane will get a kick out of this table. As Wheatley notes, "That's tremendous!" And so...
With tons of references and entertaining gameplay, Portal Portal is a great new table. It's a little thin on content and will require the purchase of either Zen Pinball 2 or Pinball FX2 to play it, however, so it's an investment that those coming only for the Portal aspect might need to rationalize.
It's not quite a triumph, but Zen Pinball 2's Portal table is a stand out in the series' expansive table list. While there may not be enough meat here to thrill Portal fans with a passing fancy for virtual pinball, it's definitely a solid choice for anyone who has enjoyed Zen Pinball 2's other games.