2.4
2021-04-25
Improved model animation: use higher precision vertex shaders so that, when zoomed in on, model surfaces don't pop in and out as they animate.
2.3
2020-11-01
Fix incorrect robot interaction: prevent lucky timing from causing the Zapper Spider to shoot an attacking Fixed Zapper.
2.2
2020-07-12
Fix buttons appearing under the notch on iPhone X and similar.
Fix non-working "Never" button on review nag screen.
Minor visual improvement to the Flag.
2.1
2020-07-06
Various visual and UI improvements.
2.0
2020-06-27
This is a complete rewrite, using a different game engine, mainly so as to support multiple platforms, but also providing some visual improvements due to the use of shaders.
1.8
2016-10-13
Fix bug introduced in last update: squares left blocked after explosions
1.7
2016-10-06
Fix a bug that caused a crash when running under iOS 10.
1.6
2016-05-31
Bug fix: level 10D unwinable on 64bit devices
1.5
2016-04-28
Reduce memory usage to avoid crashing when help overlays are displayed
Add acknowledgement screen for all levels complete
Add app icon for iOS 9
Minor bug fix
Add tester's names to credits page
1.4
2015-11-07
Fix help-system's back and exit buttons in iOS 9
Add help overlay for unavailable spider robots
1.3
2015-10-24
Add help page for the lift.
Minor formatting improvement in the help pages.
Add help overlay in lift tutorial.
Improve visibility of help overlays.
1.2
2015-08-10
Fix bug that cause a single background always to be used.
Honour the no-cameras flag, used in some levels.
1.1
2015-08-04
App store name changed