Squidship Diver

Pilot the SpaceY Squidship* through its atmospheric entry, descent, and lift balloon deployment in the atmosphere of Earth's twin neighbor, Venus.

* any resemblance to real squidships living or dead is purely coincidental

Fins can be controlled by dragging on or near the bidirectional arrow icons, or with the qw/io/as/kl keys.
Fin position can be equalized toward the opposite with the equal sign icons or the e/u/d/j keys.
Thrusters are controlled with the bottom-right icons or the ry/tg/fh keys.
Balloon deployment controls are under the instrument panel. Tap it to uncover them.

The instrument panel shows:

fin positions to both sides
heat shield temperature and damage on top
(pure white is too hot)
attitude, angular velocity, and angular acceleration in the center
altitude and vertical components of velocity and acceleration on the left
(the green zone is safe altitude for balloon speed)
speed upward on the right
(speed is safe for balloon deployment when the green is visible and top of the thin line is under it)
deceleration/g-force downward on the right
(green is comfortable, red is immediately dangerous)
lateral acceleration below

To succeed you must:

survive the initial heat pulse without skipping back out of the atmosphere
slow down gradually by atmospheric drag
descend to a comfortable altitude of about 60 km
tap the instrument panel to reveal the balloon controls
unlock and deploy the balloon

You can fail by:

skipping off the atmosphere and continuing in orbit
overheating and burning up
breaking up under excessive aerodynamic force
deploying the balloon too early so it is destroyed
getting crushed in the hellish lower atmosphere of Venus