Recently,  in the "Baldi's Basics full game public demo",

i found leftover code from a field trip that is from the 7th status update on kickstarter

7th status update:Baldi's Basics in Education and Learning - Full game! by Micah McGonigal — Kickstarter

the leftovers aren't many there's textures and coding

textures:Tree-sharedassets3.assets-245,Bus-sharedassets3.assets-303

as for the code:

    // Token: 0x06000295 RID: 661 RVA: 0x00015AB0 File Offset: 0x00013CB0

    public void LoadFieldTrip(FieldTripObject trip, TripEntrance entrance)

    {

        this.previousTimeScale = Time.timeScale;

        Time.timeScale = 0f;

        this.playerLocations.Clear();

        this.ec.PauseEvents(true);

        this.currentTripEntrance = entrance;

        for (int i = 0; i < Singleton<CoreGameManager>.Instance.setPlayers; i++)

        {

            this.playerLocations.Add(Singleton<CoreGameManager>.Instance.GetPlayer(i).transform.position);

        }

        this.tripScreen = UnityEngine.Object.Instantiate<Canvas>(this.tripScreenPre);

        this.tripScreen.worldCamera = Singleton<GlobalCam>.Instance.Cam;

        this.ec.StoreTimeScale();

        this.ec.AllTimeScale = 0f;

        MainGameManager.currentManager = this;

        SceneManager.LoadSceneAsync(trip.scene, LoadSceneMode.Additive);

    }

    // Token: 0x06000296 RID: 662 RVA: 0x00015B7C File Offset: 0x00013D7C

    public void EndFieldTrip(int rank, FieldTripObject trip)

    {

        Time.timeScale = 0f;

        this.tripResult = UnityEngine.Object.Instantiate<TripResultsScreen>(this.tripResultPre);

        this.tripResult.canvas.worldCamera = Singleton<GlobalCam>.Instance.Cam;

        this.tripResult.text.text = "You are a camping dude! You win these items! WOWOWOOWOWOWOWOW!!!!";

        for (int i = 0; i < rank; i++)

        {

            this.tripResult.star[i].sprite = this.tripResult.starOn;

        }

        List<ItemObject> list = new List<ItemObject>();

        switch (rank)

        {

        case 1:

            if (this.tripItems.Count > 0)

            {

                this.tripResult.items[1].sprite = this.tripItems[0].itemSprite;

                this.tripResult.items[1].gameObject.SetActive(true);

                list.Add(this.tripItems[0]);

            }

            break;

        case 2:

        {

            int num = 0;

            while (num < this.tripResult.items.Length && num < this.tripItems.Count)

            {

                this.tripResult.items[num].sprite = this.tripItems[num].itemSprite;

                this.tripResult.items[num].gameObject.SetActive(true);

                num++;

            }

            list = this.tripItems;

            break;

        }

        case 3:

        {

            Debug.Log(string.Concat(new object[]

            {

                "tripResult.items.Length = ",

                this.tripResult.items.Length,

                " tripItems.Count = ",

                this.tripItems.Count

            }));

            int num2 = 0;

            while (num2 < this.tripResult.items.Length && num2 < this.tripItems.Count)

            {

                Debug.Log("i = " + num2);

                this.tripResult.items[num2].sprite = this.tripItems[num2].itemSprite;

                this.tripResult.items[num2].gameObject.SetActive(true);

                num2++;

            }

            list = this.tripItems;

            break;

        }

        }

        if (this.tripItems.Count <= 0)

        {

            Debug.LogWarning("An item was supposed to be awarded, but tripItems is empty!");

        }

        this.currentTripEntrance.SpawnItems(list);

        base.StartCoroutine(this.EndFieldTripDelay(trip));

    }

    // Token: 0x06000297 RID: 663 RVA: 0x00015DE4 File Offset: 0x00013FE4

    public void CloseFieldTrip(FieldTripObject trip)

    {

        UnityEngine.Object.Destroy(this.tripResult);

        SceneManager.SetActiveScene(SceneManager.GetSceneByName(this.currentScene));

        SceneManager.UnloadSceneAsync(trip.scene);

        this.ec.RestoreTimeScale();

        for (int i = 0; i < Singleton<CoreGameManager>.Instance.setPlayers; i++)

        {

            Singleton<CoreGameManager>.Instance.GetPlayer(i).plm.height = 5f;

            Singleton<CoreGameManager>.Instance.GetPlayer(i).transform.position = this.playerLocations[i];

        }

        this.ec.AssignPlayers();

        this.ec.PauseEvents(false);

        Time.timeScale = this.previousTimeScale;

    }

the challenge is to add back the field trip

So yeah! Good Luck!