Development Timeline

2014#

sonic Tails Run#

Watch on YouTubePublished June 14, 2014

The first upload showing off Taiwan Cool Fox was WAY different then the final game:

TCF was originally a Platformer instead of a Beat-'Em-Up.
You were able to move the camera around freely rather than it being locked to a 2.5D view like in future versions.
There was rings as pickups in this version of TCF before becoming apples in the final game.
Cobang looked way different, pretty much being Tails with the proportions of Cobang.
Dragons were originally enemies but did nothing and were removed after this.

Cool Fox Run#

Watch on YouTubePublished June 18, 2014.

A very altered game compared to the last version but somewhat resembles what would become TCF

Game had a different artstyle compared to the final game
The game became a Beat-'Em-Up.
Cobang got a rehaul of his last design that makes him slightly more unique but still a very rough model of Cobang.
The first appearance of the Monkeys from Level 1 however the monkey are just static objects.
A HUD was added but it was just an icon of Cobang but with purple gloves.
Crates were added and were moved to Level 6 in the final game.
Level 1 looked very different compared to the final game

2015#

2015 Cool Fox Game Trailer#

Watch on YouTubePublished Jul 5, 2015.

The first ever trailer for TCF (renamed to just Cool Fox now):

Cobang has almost his final design with him having gloves and shoes in this trailer and throughout 2015 to 2019 before the gloves and shoes were removed in 2023
The Monkeys from Level 1 have their designs finalized.

Cool Fox Game Play 2015 version#

Watch on YouTubePublished August 3, 2015.

A version of TCF (still named Cool Fox) that resembles the final game more with a lot of changes:

This version overall has a slightly darker and less cartoony tone then the final game but its not a large difference
Levels are different compared to the final game
Bosses were added
Gameplay has been finalized but movement is slightly different
- Moving left and right is more instant then gradual like in the final game.
- Presumably there is no dodge mechanic due to Jack not pressing the dodge button throughout the whole video.
- When using your super meter, there's no slowdown and screen effects.
- Barrels were unbreakable
The HUD was updated but has a different design compared to the final game.
- The Icon was more smushed
- Health and Super bars had a different design
Enemies and bosses have different sounds compared to the final game.
Enemies have no visible healthbars
Bosses have visible healthbars and the design is different, having
- No icon of the boss
- And it being on the bottom rather than the top like the final game
The Rats have almost their final designs except they have
- Shoes.
- A hoodie rather then a vest.
- Slightly different ears.
- And no jewelry/piercings
The Boar had a different design, having
- Shaper eyes.
- Bigger tusks.
- And a more darker version of his shirt.
The Boar also has a slightly different attack when jumping over him, throwing 2 uppercuts instead of 1.
Hyenas have a slightly different design compared to the final one, having
- Sharper teeth
- And a slightly different jacket design
The Bear had a way more different design from his final one, having
- No wrestling theme and instead looking more like a biker.
- Black fur.
- And no pupils like the Rhino
Walruses, Hyenas, Rats, and LVL 1 Monkeys are in the 3rd Level instead of the polar bears and walruses like in the final game.
Walruses have a slightly different design, having
- A white outline around the eyes
- Slightly shorter yellower claws
- And a tail.
The Rhino from Level 7 is actually the Level 3 boss in this version
The Rhino has a way more different design too, being
- Shorter compared to the final game
- Having no pupils
- Overall slightly simpler design

2019#

Cool Fox's 1st 2019 Poster#

Posted on June 7th 2019.

A poster showing off the game, keeping the 2015 designs, and showing its first proper logo.

Cool Fox's 2nd 2019 Poster#

Posted also on June 7th 2019.

A somewhat similar poster to the first one but smaller, notably having a Android logo suggesting there were plans for a Mobile port, and a different logo.

Cool Fox Promotional Image#

Posted also also on June 7th 2019.

A promotional image that was posted the same day as the last 2 posters although notably having a updated logo that resembled the final logo just gray, the Boar having his modern design, and Shooki's first appearance.

The last 2 posters may have been made back in 2015-2016 but just posted or reposted in 2019, being backed up by a 2017 video that has the Boar's modern design here.

(Source: LiJiaPictures's FB)

2025#

Taiwan Coolfox#

Watch on YouTubePublished on April 16, 2025.

2.5 months before the full games released, nothing major was changed besides the title